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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> * contributor license agreements.  See the NOTICE file distributed with</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * the License.  You may obtain a copy of the License at</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *      <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> */</em>
<a name="17" href="#17">17</a>  <strong class="jxr_keyword">package</strong> org.apache.commons.fileupload;
<a name="18" href="#18">18</a>  
<a name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.io.ByteArrayInputStream;
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> java.io.ByteArrayOutputStream;
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> java.io.FilterInputStream;
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.io.InputStream;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.io.OutputStreamWriter;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> javax.servlet.http.HttpServletRequest;
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.FileUploadBase.IOFileUploadException;
<a name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.disk.DiskFileItemFactory;
<a name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.servlet.ServletFileUpload;
<a name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.servlet.ServletRequestContext;
<a name="33" href="#33">33</a>  
<a name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> junit.framework.TestCase;
<a name="35" href="#35">35</a>  
<a name="36" href="#36">36</a>  
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment">/**</em>
<a name="38" href="#38">38</a>  <em class="jxr_javadoccomment"> * Unit test for items with varying sizes.</em>
<a name="39" href="#39">39</a>  <em class="jxr_javadoccomment"> */</em>
<a name="40" href="#40">40</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/fileupload/StreamingTest.html">StreamingTest</a> <strong class="jxr_keyword">extends</strong> TestCase
<a name="41" href="#41">41</a>  {
<a name="42" href="#42">42</a>      <em class="jxr_javadoccomment">/**</em>
<a name="43" href="#43">43</a>  <em class="jxr_javadoccomment">     * Tests a file upload with varying file sizes.</em>
<a name="44" href="#44">44</a>  <em class="jxr_javadoccomment">     */</em>
<a name="45" href="#45">45</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testFileUpload()
<a name="46" href="#46">46</a>              <strong class="jxr_keyword">throws</strong> IOException, FileUploadException
<a name="47" href="#47">47</a>      {
<a name="48" href="#48">48</a>      	byte[] request = newRequest();
<a name="49" href="#49">49</a>          List fileItems = parseUpload(request);
<a name="50" href="#50">50</a>          Iterator fileIter = fileItems.iterator();
<a name="51" href="#51">51</a>          <strong class="jxr_keyword">int</strong> add = 16;
<a name="52" href="#52">52</a>          <strong class="jxr_keyword">int</strong> num = 0;
<a name="53" href="#53">53</a>          <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0;  i &lt; 16384;  i += add) {
<a name="54" href="#54">54</a>              <strong class="jxr_keyword">if</strong> (++add == 32) {
<a name="55" href="#55">55</a>                  add = 16;
<a name="56" href="#56">56</a>              }
<a name="57" href="#57">57</a>              FileItem item = (FileItem) fileIter.next();
<a name="58" href="#58">58</a>              assertEquals(<span class="jxr_string">"field"</span> + (num++), item.getFieldName());
<a name="59" href="#59">59</a>              byte[] bytes = item.get();
<a name="60" href="#60">60</a>              assertEquals(i, bytes.length);
<a name="61" href="#61">61</a>              <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> j = 0;  j &lt; i;  j++) {
<a name="62" href="#62">62</a>                  assertEquals((byte) j, bytes[j]);
<a name="63" href="#63">63</a>              }
<a name="64" href="#64">64</a>          }
<a name="65" href="#65">65</a>          assertTrue(!fileIter.hasNext());
<a name="66" href="#66">66</a>      }
<a name="67" href="#67">67</a>  
<a name="68" href="#68">68</a>  
<a name="69" href="#69">69</a>      <em class="jxr_javadoccomment">/**</em>
<a name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     * Tests, whether an invalid request throws a proper</em>
<a name="71" href="#71">71</a>  <em class="jxr_javadoccomment">     * exception.</em>
<a name="72" href="#72">72</a>  <em class="jxr_javadoccomment">     */</em>
<a name="73" href="#73">73</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testFileUploadException()
<a name="74" href="#74">74</a>      		<strong class="jxr_keyword">throws</strong> IOException, FileUploadException {
<a name="75" href="#75">75</a>      	byte[] request = newRequest();
<a name="76" href="#76">76</a>      	byte[] invalidRequest = <strong class="jxr_keyword">new</strong> byte[request.length-11];
<a name="77" href="#77">77</a>      	System.arraycopy(request, 0, invalidRequest, 0, request.length-11);
<a name="78" href="#78">78</a>      	<strong class="jxr_keyword">try</strong> {
<a name="79" href="#79">79</a>      		parseUpload(invalidRequest);
<a name="80" href="#80">80</a>  	        fail(<span class="jxr_string">"Expected EndOfStreamException"</span>);
<a name="81" href="#81">81</a>      	} <strong class="jxr_keyword">catch</strong> (IOFileUploadException e) {
<a name="82" href="#82">82</a>      		assertTrue(e.getCause() instanceof MultipartStream.MalformedStreamException);
<a name="83" href="#83">83</a>      	}
<a name="84" href="#84">84</a>      }
<a name="85" href="#85">85</a>  
<a name="86" href="#86">86</a>      <em class="jxr_javadoccomment">/**</em>
<a name="87" href="#87">87</a>  <em class="jxr_javadoccomment">     * Tests, whether an IOException is properly delegated.</em>
<a name="88" href="#88">88</a>  <em class="jxr_javadoccomment">     */</em>
<a name="89" href="#89">89</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testIOException()
<a name="90" href="#90">90</a>      		<strong class="jxr_keyword">throws</strong> IOException {
<a name="91" href="#91">91</a>      	byte[] request = newRequest();
<a name="92" href="#92">92</a>      	InputStream stream = <strong class="jxr_keyword">new</strong> FilterInputStream(<strong class="jxr_keyword">new</strong> ByteArrayInputStream(request)){
<a name="93" href="#93">93</a>      		<strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> num;
<a name="94" href="#94">94</a>      		<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> read() <strong class="jxr_keyword">throws</strong> IOException {
<a name="95" href="#95">95</a>      			<strong class="jxr_keyword">if</strong> (++num &gt; 123) {
<a name="96" href="#96">96</a>      				<strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"123"</span>);
<a name="97" href="#97">97</a>      			}
<a name="98" href="#98">98</a>      			<strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">super</strong>.read();
<a name="99" href="#99">99</a>      		}
<a name="100" href="#100">100</a> 			<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> read(byte[] pB, <strong class="jxr_keyword">int</strong> pOff, <strong class="jxr_keyword">int</strong> pLen)
<a name="101" href="#101">101</a> 					<strong class="jxr_keyword">throws</strong> IOException {
<a name="102" href="#102">102</a> 				<strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0;  i &lt; pLen;  i++) {
<a name="103" href="#103">103</a> 					<strong class="jxr_keyword">int</strong> res = read();
<a name="104" href="#104">104</a> 					<strong class="jxr_keyword">if</strong> (res == -1) {
<a name="105" href="#105">105</a> 						<strong class="jxr_keyword">return</strong> i == 0 ? -1 : i;
<a name="106" href="#106">106</a> 					}
<a name="107" href="#107">107</a> 					pB[pOff+i] = (byte) res;
<a name="108" href="#108">108</a> 				}
<a name="109" href="#109">109</a> 				<strong class="jxr_keyword">return</strong> pLen;
<a name="110" href="#110">110</a> 			}
<a name="111" href="#111">111</a>     	};
<a name="112" href="#112">112</a>     	<strong class="jxr_keyword">try</strong> {
<a name="113" href="#113">113</a>     		parseUpload(stream, request.length);
<a name="114" href="#114">114</a>     		fail(<span class="jxr_string">"Expected IOException"</span>);
<a name="115" href="#115">115</a>     	} <strong class="jxr_keyword">catch</strong> (FileUploadException e) {
<a name="116" href="#116">116</a>     		assertTrue(e.getCause() instanceof IOException);
<a name="117" href="#117">117</a>     		assertEquals(<span class="jxr_string">"123"</span>, e.getCause().getMessage());
<a name="118" href="#118">118</a>         }     
<a name="119" href="#119">119</a>     }         
<a name="120" href="#120">120</a> 
<a name="121" href="#121">121</a>     <em class="jxr_javadoccomment">/**</em>
<a name="122" href="#122">122</a> <em class="jxr_javadoccomment">     * Test for FILEUPLOAD-135</em>
<a name="123" href="#123">123</a> <em class="jxr_javadoccomment">     */</em>
<a name="124" href="#124">124</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testFILEUPLOAD135()
<a name="125" href="#125">125</a>             <strong class="jxr_keyword">throws</strong> IOException, FileUploadException
<a name="126" href="#126">126</a>     {
<a name="127" href="#127">127</a>         byte[] request = newShortRequest();
<a name="128" href="#128">128</a>         <strong class="jxr_keyword">final</strong> ByteArrayInputStream bais = <strong class="jxr_keyword">new</strong> ByteArrayInputStream(request);
<a name="129" href="#129">129</a>         List fileItems = parseUpload(<strong class="jxr_keyword">new</strong> InputStream() {
<a name="130" href="#130">130</a>             <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> read()
<a name="131" href="#131">131</a>             <strong class="jxr_keyword">throws</strong> IOException
<a name="132" href="#132">132</a>             {
<a name="133" href="#133">133</a>                 <strong class="jxr_keyword">return</strong> bais.read();
<a name="134" href="#134">134</a>             }
<a name="135" href="#135">135</a>             <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> read(byte b[], <strong class="jxr_keyword">int</strong> off, <strong class="jxr_keyword">int</strong> len) <strong class="jxr_keyword">throws</strong> IOException 
<a name="136" href="#136">136</a>             {
<a name="137" href="#137">137</a>                 <strong class="jxr_keyword">return</strong> bais.read(b, off, Math.min(len, 3));
<a name="138" href="#138">138</a>             }
<a name="139" href="#139">139</a> 
<a name="140" href="#140">140</a>         }, request.length);
<a name="141" href="#141">141</a>         Iterator fileIter = fileItems.iterator();
<a name="142" href="#142">142</a>         assertTrue(fileIter.hasNext());
<a name="143" href="#143">143</a>         FileItem item = (FileItem) fileIter.next();
<a name="144" href="#144">144</a>         assertEquals(<span class="jxr_string">"field"</span>, item.getFieldName());
<a name="145" href="#145">145</a>         byte[] bytes = item.get();
<a name="146" href="#146">146</a>         assertEquals(3, bytes.length);
<a name="147" href="#147">147</a>         assertEquals((byte)'1', bytes[0]);
<a name="148" href="#148">148</a>         assertEquals((byte)'2', bytes[1]);
<a name="149" href="#149">149</a>         assertEquals((byte)'3', bytes[2]);
<a name="150" href="#150">150</a>         assertTrue(!fileIter.hasNext());
<a name="151" href="#151">151</a>     }
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a>     <strong class="jxr_keyword">private</strong> List parseUpload(byte[] bytes) <strong class="jxr_keyword">throws</strong> FileUploadException {
<a name="154" href="#154">154</a>     	<strong class="jxr_keyword">return</strong> parseUpload(<strong class="jxr_keyword">new</strong> ByteArrayInputStream(bytes), bytes.length);
<a name="155" href="#155">155</a>     }
<a name="156" href="#156">156</a> 
<a name="157" href="#157">157</a>     <strong class="jxr_keyword">private</strong> List parseUpload(InputStream pStream, <strong class="jxr_keyword">int</strong> pLength)
<a name="158" href="#158">158</a>     		<strong class="jxr_keyword">throws</strong> FileUploadException {
<a name="159" href="#159">159</a>         String contentType = <span class="jxr_string">"multipart/form-data; boundary=---1234"</span>;
<a name="160" href="#160">160</a> 
<a name="161" href="#161">161</a>         FileUploadBase upload = <strong class="jxr_keyword">new</strong> ServletFileUpload();
<a name="162" href="#162">162</a>         upload.setFileItemFactory(<strong class="jxr_keyword">new</strong> DiskFileItemFactory());
<a name="163" href="#163">163</a>         HttpServletRequest request = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MockHttpServletRequest.html">MockHttpServletRequest</a>(pStream,
<a name="164" href="#164">164</a>         		pLength, contentType);
<a name="165" href="#165">165</a> 
<a name="166" href="#166">166</a>         List fileItems = upload.parseRequest(<strong class="jxr_keyword">new</strong> ServletRequestContext(request));
<a name="167" href="#167">167</a>         <strong class="jxr_keyword">return</strong> fileItems;
<a name="168" href="#168">168</a>     }
<a name="169" href="#169">169</a> 
<a name="170" href="#170">170</a>     <strong class="jxr_keyword">private</strong> String getHeader(String pField) {
<a name="171" href="#171">171</a>         <strong class="jxr_keyword">return</strong> <span class="jxr_string">"-----1234\r\n"</span>
<a name="172" href="#172">172</a>             + <span class="jxr_string">"Content-Disposition: form-data; name=\&quot;"</span> + pField + <span class="jxr_string">"\&quot;\r\n"</span>
<a name="173" href="#173">173</a>             + <span class="jxr_string">"\r\n"</span>;
<a name="174" href="#174">174</a> 
<a name="175" href="#175">175</a>     }
<a name="176" href="#176">176</a> 
<a name="177" href="#177">177</a>     <strong class="jxr_keyword">private</strong> String getFooter() {
<a name="178" href="#178">178</a>         <strong class="jxr_keyword">return</strong> <span class="jxr_string">"-----1234--\r\n"</span>;
<a name="179" href="#179">179</a>     }
<a name="180" href="#180">180</a> 
<a name="181" href="#181">181</a>     <strong class="jxr_keyword">private</strong> byte[] newShortRequest() <strong class="jxr_keyword">throws</strong> IOException {
<a name="182" href="#182">182</a>         <strong class="jxr_keyword">final</strong> ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
<a name="183" href="#183">183</a>         <strong class="jxr_keyword">final</strong> OutputStreamWriter osw = <strong class="jxr_keyword">new</strong> OutputStreamWriter(baos, <span class="jxr_string">"US-ASCII"</span>);
<a name="184" href="#184">184</a>         osw.write(getHeader(<span class="jxr_string">"field"</span>));
<a name="185" href="#185">185</a>         osw.write(<span class="jxr_string">"123"</span>);
<a name="186" href="#186">186</a>         osw.write(<span class="jxr_string">"\r\n"</span>);
<a name="187" href="#187">187</a>         osw.write(getFooter());
<a name="188" href="#188">188</a>         osw.close();
<a name="189" href="#189">189</a>         <strong class="jxr_keyword">return</strong> baos.toByteArray();
<a name="190" href="#190">190</a>     }
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>     <strong class="jxr_keyword">private</strong> byte[] newRequest() <strong class="jxr_keyword">throws</strong> IOException {
<a name="193" href="#193">193</a>         <strong class="jxr_keyword">final</strong> ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
<a name="194" href="#194">194</a>         <strong class="jxr_keyword">final</strong> OutputStreamWriter osw = <strong class="jxr_keyword">new</strong> OutputStreamWriter(baos, <span class="jxr_string">"US-ASCII"</span>);
<a name="195" href="#195">195</a>         <strong class="jxr_keyword">int</strong> add = 16;
<a name="196" href="#196">196</a>         <strong class="jxr_keyword">int</strong> num = 0;
<a name="197" href="#197">197</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0;  i &lt; 16384;  i += add) {
<a name="198" href="#198">198</a>             <strong class="jxr_keyword">if</strong> (++add == 32) {
<a name="199" href="#199">199</a>                 add = 16;
<a name="200" href="#200">200</a>             }
<a name="201" href="#201">201</a>             osw.write(getHeader(<span class="jxr_string">"field"</span> + (num++)));
<a name="202" href="#202">202</a>             osw.flush();
<a name="203" href="#203">203</a>             <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> j = 0;  j &lt; i;  j++) {
<a name="204" href="#204">204</a>                 baos.write((byte) j);
<a name="205" href="#205">205</a>             }
<a name="206" href="#206">206</a>             osw.write(<span class="jxr_string">"\r\n"</span>);
<a name="207" href="#207">207</a>         }
<a name="208" href="#208">208</a>         osw.write(getFooter());
<a name="209" href="#209">209</a>         osw.close();
<a name="210" href="#210">210</a>         <strong class="jxr_keyword">return</strong> baos.toByteArray();
<a name="211" href="#211">211</a>     }
<a name="212" href="#212">212</a> }
</pre>
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